import {getLyric} from 'api/song'
import {ERR_OK} from 'api/config'
import {Base64} from 'js-base64'

export default class Song {
    constructor({id, mid, singer, name, album, duration, image, url}) {
      this.id = id
      this.mid = mid
      this.singer = singer
      this.name = name
      this.album = album
      this.duration = duration
      this.image = image
      this.url = url
    }


getLyric() {
  if (this.lyric) {
    return Promise.resolve(this.lyric)
  }

  return new Promise((resolve, reject) => {
    getLyric(this.mid).then((res) => {
      if (res.retcode === ERR_OK) {
        this.lyric = Base64.decode(res.lyric)
        resolve(this.lyric)
      } else {
        reject('no lyric')
      }
    })
  })
}
}


export function createSong(musicData) {
    return new Song({
      id: musicData.songid,
      mid: musicData.songmid,
      singer: filterSinger(musicData.singer),
      name: musicData.songname,
      album: musicData.albumname,
      duration: musicData.interval,
      image: `https://y.gtimg.cn/music/photo_new/T002R300x300M000${musicData.albummid}.jpg?max_age=2592000`,
      url: `http://ws.stream.qqmusic.qq.com/${musicData.songid}.m4a?fromtag=46`
    })
  }

function filterSinger(singer) {
    let ret = []
    if (!singer) {
      return ''
    }
    singer.forEach((s) => {
      ret.push(s.name)
    })
    return ret.join('/')
}
  